Disaster recovery is the process used to restore your backed up data in the event of a disaster.

A round plate on which data can be stored. Disks are divided into two categories magnetic (floppy disks, hard disk drives) and Optical (CD-ROM, DVDS).

A machine that reads and writes data onto a disk. There are many different types of disk drives i.e. a hard disk drive that writes info to a hard drive or a Floppy drive which writes information to a floppy disk.

This is a variation of disk mirroring in which each of the multiple storage disks has its own SCSI controller. This is the practice of duplicating data in separate volumes on two hard disks to make storage more fault-tolerant in case one drive goes down you can still access the other.

The practice used to spread data over multiple hard disks. Disk striping can speed up data retrieval operations from disk storage. The user is normally allowed to set the data unit size of each strip.

This is an approach to computer storage backup and archiving in which data is initially copied to back up storage on a disk storage system and then periodically copied again to a tape storage system.

Distributed storage is set up so that each server has its own external storage subsystem.

Elastic Block Store.

This is a virtual disk, but it’s a type of disk suited to reading and writing in “blocks”. Databases tend to use this sort of storage type, as it has a much faster read & write speed.

In this sense, “Elastic” is not that far from an elastic band. The capacity of your resources can stretch and shrink to meet demand, within limits. Compute is running apps, although in this case, it refers to virtual servers or virtual machines (VMs).

Basically a network drive. Cool pricing model — you just use it and pay for what you use. Unlike disk-based storage pricing, such as EBS, where you have to provision and pay for a whole disk. One less headache.